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1 year ago

I need help asap!!!!!!!!!!!!!

Mathematics

2 answers:

Bond [772]1 year ago

4 0

Answer:

yes

Step-by-step explanation:

(6,1) is a solution to the system of equations shown only for equation one in the sense that x=6 any y=1

x+2y=8

6+2(1)=8

AnnZ [28]1 year ago

3 0

Substituting x=6 and y=1 into both equations,

$x+2y=8 \\ \\ 6+2(1)=8 \\ \\ 8=8 \\ \\ \\ \\ 5x-2y=4 \\ \\ 5(6)-2(1)=4 \\ \\ 28=4$

Since the second equation is not satisfied, (6,1) is not a solution to the system of equations.

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Hurry 50 points for correct answer

Ad libitum [116K]

Answer: <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

Step-by-step explanation:

The equation $x=\sqrt{6x+7}$ can be solved by squaring both sides:

$x^2 = 6x + 7\\\\x^2 - 6x - 7 = 0\\\\(x-7)(x+1) = 0$

We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

$1 = \sqrt{-1}\\ 7 = \sqrt{49}$

The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is <em>"7 is a solution to the original equation. The value –1 is an extraneous solution."</em>

4 0

3 years ago

What is the answer to 7 7/8 - 3 1/4=

GenaCL600 [577]

4 5/8

Take 7 - 3 = 4 as the whole number
Then take 1/4 change it to 5/8 by multiplying 1 x 2 = 2 then 4 x 2 = 8 = 2/8
Take 7/8 - 2/8 = 5/8

Answer 4 5/8

8 0

3 years ago

M is the incenter of triangle ABC. Find the lengths of MD and DC. (Look at pic)

Deffense [45]

Answer:

Part 1) $MD=9\ units$

Part 2) $DC=12\ units$

Step-by-step explanation:

Step 1

Find the length of MD

we know that

The incenter is the intersection of the angle bisectors of the three vertices of the triangle. Is the point forming the origin of a circle inscribed inside the triangle

In this problem

$MD=ME=MF$ ------> is the radius of a circle inscribed inside the triangle

we have that

$MF=9\ units$

therefore

$ME=9\ units$

$MD=9\ units$

Step 2

Find the length of DC

we know that

In the right triangle MDC

Applying the Pythagoras theorem

$MC^{2} =MD^{2}+DC^{2}$

we have

$MD=9\ units$

$MC=15\ units$

substitute

$15^{2} =9^{2}+DC^{2}$

$DC^{2}=225-81$

$DC=\sqrt{144}\ units$

$DC=12\ units$

6 0

3 years ago

The odds that a book will be favourable reviewed by three independent critic. a b and c are 5 to 2, 4 to 3 and 3 to 4 respective

Lelu [443]

Answer:

1/4

Step-by-step explanation:

i think you would add 5+4+3 and 2+3+4 and divide them so 9/12 and that makes your probability which leaves a 3/12 chance non of them are in favour of the book

6 0

2 years ago

Will give brainliest PLEASE HELP!!! :D

marshall27 [118]

Answer:

Step-by-step explanation:

hope this helps

;)

5 0

3 years ago

Read 2 more answers